<![CDATA[This research aimed to describe the skills of students in answering questions and draw conclusions on the electrolyte and nonelectrolyte matery through the application of Problem Based Learning for students cognitive groups of high, intermediate and low level group. The subjects were students of class X1 SMA Negeri 1 Sidomulyo Academic Year 2012/2013. This research used the pre-experimental method with a one-shot case study design. It was a descriptive research. The results showed that the skills of answering questions in high level group: half were excellent, and the other half good. Intermediate level group almost entirely were less. Low level group almost half were enough, half were less. The skills of draw conclusions in high level group entirely were very good. Intermediate level group, almost entirely were excellent, and just small part were good and enough. Low level group almost entirely were very good and just small part of the remaining were enough.Penelitian ini bertujuan untuk mendeskripsikan keterampilan menjawab pertanyaan dan menarik kesimpulan pada materi larutan elektrolit dan nonelektrolit melalui penerapan model Problem Based Learning untuk siswa kelompok kognitif tinggi,sedang dan rendah. Subyek penelitian ini adalah siswa kelas X1 SMA Negeri 1 Sidomulyo Tahun Ajaran 2012/2013. Penelitian ini menggunakan metode pre-eksperimen dengan desain penelitian one-shot case study. Analisis data menggunakan analisis deskriptif . Hasil penelitian menunjukkan bahwa keterampilan menjawab pertanyaan pada kelompok tinggi separuhnya berkriteria sangat baik, dan baik. Kelompok sedang, hampir seluruhnya berkriteria kurang. Kelompok rendah hampir separuhnya berkriteria cukup, separuhnya berkriteria kurang. Keterampilan menarik kesimpulan pada kelompok tinggi seluruhnya berkriteria sangat baik. Kelompok sedang, hampir seluruhnya berkriteria sangat baik,dan sebagian kecil berkriteria baik dan cukup. Kelompok rendah hampir seluruhnya berkriteria sangat baik dan sebagian kecil sisanya berkriteria cukup.Kata kunci: problem based learning, kelompok kognitif , keterampilan menjawab pertanyaan menarik kesimpulan.]]>
